The Packing Assembly, cataloged under National Stock Number 5330-01-655-4316, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Cupp's Industrial Supply, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-655-4316 |
| Primary Part Number | 52-3535-1B |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Cupp's Industrial Supply, Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Cross Section Inside Diameter | 18.50 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 20.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 52-3535-1B | Cupp's Industrial Supply, Inc (USA) |
| 52-3535-1B | Psp Seals Llc Dba Psp Seals Llc (USA) |
| Reference | Meaning |
|---|---|
| 52-3535-1B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-655-4316 is a Packing Assembly, manufactured by Cupp's Industrial Supply, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-655-4316 has 2 manufacturer part numbers on file: 52-3535-1B (Cupp's Industrial Supply, Inc), 52-3535-1B (Psp Seals Llc Dba Psp Seals Llc).
Key specifications for 52-3535-1B: Criticality Code Justification: FEAT; Cross Section Inside Diameter: 18.50 INCHES NOMINAL IN; Special Features: PACKING ASSEMBLY SHALL BE PACKAGED TOGETHER AS SHOWN IN ENVELOPS FAB; Cross Section Outside Diameter: 20.125 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.